Add butter to outside slices of bread and toast lightly under broiler in oven. Set aside.

Combine chicken and hot sauce in a skillet. Heat throughly.

Add in cream cheese, cheddar cheese and blue cheese dressing. Mix well.

Cook over low heat until cheese is melted. Stirring often.

Spread mixture on 4 bread slices.

Top with a drizzle of blue cheese dressing.

Cover with remaining 4 bread slices.

Serve with blue cheese dressing and celery sticks.